Dust collector for a grinder



FIG. 1 is a top, front and left side perspective view of a dust collector for a grinder showing my new design;

FIG. 2 is a left side elevational view;

FIG. 3 is a top plan view; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for dust collector for a grinder, as shown. 